Platform information: Hardware: aarch64/4GB/64GB OS: Manjaro Java Runtime Environment: java 11 openHAB version: 3.0 Issue of the topic: Run openhab in a subdirectory in nginx reverse proxy Please post configurations (if applicable): Items configuration related to the issue: none Sitemap configu…

After messing around and wasting many hours I ended up thinking this is not possible in OH3. I will use a subdomain even if this is not what I wanted to do.

Compared to your OH2 configuration this one ( Nginx as reverse proxy for OH2 at non-root location - #8 by evertramos ) has a slightly different "proxy_set_header Host " entry. In post 12 in that thread configuration for paperui is mentioned. I did not test but hopes it helps in your case.

I don’t see any configuration where paper ui was confirmed working… Also, that thread has only 11 posts… what do you mean by post 12? The difference in host header is a test I made. Using $host/smarhome is even worse than $host

[OH3] Reverse proxy to subdirectory

Setup, Configuration and Use Installation

billfor (Bill) February 1, 2021, 4:21am 5

Read this post, for basicUI and the REST API in OH3.
It works fine for me. I don’t need the mainUI at this point though, so you might have to do some additional tweaking.